<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no">
    <meta name="description" content="Set a custom resolution scale and/or toggle the browser's recommended resolution.">
    <meta name="cesium-sandcastle-labels" content="Showcases">
    <title>Cesium Demo</title>
    <script type="text/javascript" src="../Sandcastle-header.js"></script>
    <script type="text/javascript" src="../../../Build/CesiumUnminified/Cesium.js" nomodule></script>
    <script type="module" src="../load-cesium-es6.js"></script>
</head>
<body class="sandcastle-loading" data-sandcastle-bucket="bucket-requirejs.html">
<style>
    @import url(../templates/bucket.css);
</style>
<div id="cesiumContainer" class="fullSize"></div>
<div id="loadingOverlay"><h1>Loading...</h1></div>
<div id="toolbar">
<table><tbody>
    <tr>
        <td>Use Browser Recommended Resolution</td>
        <td><input type="checkbox" data-bind="checked: useBrowserRecommendedResolution"></td>
    </tr>
    <tr>
        <td>Resolution Scale</td>
        <td>
            <input type="range" min="0.1" max="2.0" step="0.1" data-bind="value: resolutionScale, valueUpdate: 'input'">
            <input type="text" size="5" data-bind="value: resolutionScale">
        </td>
    </tr>
</tbody></table>
</div>
<script id="cesium_sandcastle_script">
function startup(Cesium) {
    'use strict';
//Sandcastle_Begin
// When browser recommended resolution is enabled, the viewer renders at
// CSS pixel resolution (96 dpi). Otherwise, the viewer renders at the
// screen's native resolution.
//
// Resolution scale applies an additional scaling factor to the
// WebGL canvas.
//
// For example, if the cesium container div is 500x500 pixels,
// window.devicePixelRatio is 2.0, and useBrowserRecommendedResolution
// is false, the WebGL canvas will be 1000x1000 pixels. Then if
// the resolutionScale is 0.25, the canvas will be scaled
// down to 250x250 pixels.

var viewer = new Cesium.Viewer('cesiumContainer');

var viewModel = {
    useBrowserRecommendedResolution : false,
    resolutionScale : 0.25
};

Cesium.knockout.track(viewModel);
var toolbar = document.getElementById('toolbar');
Cesium.knockout.applyBindings(viewModel, toolbar);
for (var name in viewModel) {
    if (viewModel.hasOwnProperty(name)) {
        Cesium.knockout.getObservable(viewModel, name).subscribe(update);
    }
}

function update() {
    viewer.useBrowserRecommendedResolution = viewModel.useBrowserRecommendedResolution;

    var resolutionScale = Number(viewModel.resolutionScale);
    resolutionScale = !isNaN(resolutionScale) ? resolutionScale : 1.0;
    resolutionScale = Cesium.Math.clamp(resolutionScale, 0.1, 2.0);
    viewer.resolutionScale = resolutionScale;
}
update();
//Sandcastle_End
    Sandcastle.finishedLoading();
}
if (typeof Cesium !== 'undefined') {
    window.startupCalled = true;
    startup(Cesium);
}
</script>
</body>
</html>
